President Obama has a huge lead with Hispanic voters, according to two new polls.

Obama leads Mitt Romney by 70 to 25 percent in a poll of Latino likely voters conducted for NBC News, Telemundo and the Wall Street Journal. That's similar to a 71 to 20 percent lead he has with Hispanic registered voters according to a new poll from Latino Decisions.

Romney's numbers in the NBC/WSJ/Telemundo poll represent a slight uptick from the 21 percent support he had a month ago, but would still mark a historic low for a Republican nominee and are a warning sign for the party. 

As the Hispanic population grows, GOP presidential candidates have seen their share of the vote decrease. Sen. John McCainJohn Sidney McCainLawmakers worry about rise of fake video technology Democrats put Dreamers and their party in danger by playing hardball Trump set a good defense budget, but here is how to make it better MORE (R-Ariz.) won 31 percent of the Hispanic vote in 2008, according to exit polls, while President George W. Bush topped 40 percent Hispanic support in 2004.

A top Romney campaign official told The Hill last August that the campaign's goal was to win 38 percent of the Hispanic vote.

Latinos represent a big chunk of the vote in Florida, Colorado and Nevada, three key swing states. Public polling shows Romney with a lead in Florida, where there are many Cuban-American voters who tend to lean Republican. Most polls show Obama with the edge in Nevada, while Colorado appears to be a pure toss-up state. Virginia, another key swing state where polls show a tied race, has a small but fast-growing Latino population.